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How do I tell what version I am running? A: Click the File tab. The software version is in the lower right-hand corner of that window.

How do I go Online/ Match devices? A: First you must be properly connected to the devices via an Ethernet switch or hub. In Audio Architect, click the Go Online button in the Workflow section of the Offline Design.

What is Media clock and when do you use it?

All devices on an AVB network have a clock which is automatically synchronized using the Precision Time Protocol (PTP). However, this does not mean that every AVB talker on the network automatically uses a synchronized sampling rate for the audio stream it sends ("Media Clock")[1]. For example, one device might generate an 48 kHz media clock with an external oscillator; another device might derive an 48 kHz media clock from its PTP clock; yet another device might synchronize to an ADAT lightpipe input; etc. While these sampling rates are nominally the same, the clocks are not synchronized.

To generate AVB streams with synchronized media clocks in multiple devices, a media clock has to be generated in one device and distributed to the others. At the moment, the only way to distribute a media clock is to act as a talker and provide a stream (which does not neet to contain any actual audio channels) to other devices, which may then recover the media clock from this stream and generate their own talker stream with the same media clock. In the XMOS AVB reference implementation, if an input stream is connected to the listener, the media clock is automatically recovered from this stream and used for the talker [2].

For IEEE1722a a stream format for the distribution of a global media clock has been proposed [3].